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The Stallion is a silver pistol with four barrels and a compact design.
According to Galen Tyrol, the Stallion is not a military issue sidearm.
Meier, a follower of Tom Zarek, carries two Stallions with him during Laura Roslin's and Commander Adama's joint expedition to find the Tomb of Athena on the surface of Kobol. Against direction from Zarek, Meier proceeds with the abandoned plan of eliminating Lee Adama, thus removing him from further political interference in Tom Zarek's political agenda with the President.
Meier hands one Stallion to Sharon Valerii to use to kill Commander Adama, while he agrees to kill Lee Adama. But Valerii feints the attack: during the crucial moment of assassination, she betrays Meier and shoots him with his own gun as Meier is aiming his Stallion at the head of Lee Adama. After stating her intentions, she surrenders her weapon to Commander Adama (Home, Part II).